From: GitHub pull_request - edited <github@alsa-project.org>
To: alsa-devel@alsa-project.org
Subject: hdspmixer: fix null pointer dereference in HDSPMixerWindow:handler_cb
Date: Mon, 1 Dec 2025 21:33:47 +0100 (CET) [thread overview]
Message-ID: <187d31a7c38dca00-webhooks-bot@alsa-project.org> (raw)
In-Reply-To: <alsa-project/alsa-tools/pr/42@alsa-project.org>
alsa-project/alsa-tools pull request #42 was edited from cheldt:
Fixes following error:
```
Program received signal SIGSEGV, Segmentation fault.
handler_cb () at /home/kenoby/dev/alsa-tools/hdspmixer/src/HDSPMixerWindow.cxx:278
278 if (fl_win->label()) {
(gdb) bt
#0 handler_cb () at /home/kenoby/dev/alsa-tools/hdspmixer/src/HDSPMixerWindow.cxx:278
#1 0x00007ffff7c5c791 in send_handlers () at /usr/src/debug/fltk/fltk-release-1.4.4/src/Fl.cxx:935
#2 Fl::handle_ () at /usr/src/debug/fltk/fltk-release-1.4.4/src/Fl.cxx:1620
#3 Fl::handle_ () at /usr/src/debug/fltk/fltk-release-1.4.4/src/Fl.cxx:1384
#4 0x00007ffff6dfb2ee in ffi_call_unix64 () at ../src/x86/unix64.S:104
#5 0x00007ffff6df79f8 in ffi_call_int () at ../src/x86/ffi64.c:676
#6 0x00007ffff6dfa6ce in ffi_call () at ../src/x86/ffi64.c:713
#7 0x00007ffff732d47a in wl_closure_invoke () at ../wayland-1.24.0/src/connection.c:1241
#8 0x00007ffff732e2e9 in dispatch_event () at ../wayland-1.24.0/src/wayland-client.c:1707
#9 0x00007ffff732e6bb in dispatch_queue () at ../wayland-1.24.0/src/wayland-client.c:1853
#10 wl_display_dispatch_queue_pending () at ../wayland-1.24.0/src/wayland-client.c:2190
#11 0x00007ffff7332776 in wl_display_dispatch_queue_timeout () at ../wayland-1.24.0/src/wayland-client.c:2096
#12 0x00007ffff7332860 in wl_display_dispatch_queue () at ../wayland-1.24.0/src/wayland-client.c:2163
#13 0x00007ffff7d017b2 in sync_done () at /usr/src/debug/fltk/fltk-release-1.4.4/src/drivers/Wayland/Fl_Wayland_Screen_Driver.cxx:1389
#14 0x00007ffff6dfb2ee in ffi_call_unix64 () at ../src/x86/unix64.S:104
#15 0x00007ffff6df79f8 in ffi_call_int () at ../src/x86/ffi64.c:676
#16 0x00007ffff6dfa6ce in ffi_call () at ../src/x86/ffi64.c:713
#17 0x00007ffff732d47a in wl_closure_invoke () at ../wayland-1.24.0/src/connection.c:1241
#18 0x00007ffff732e2e9 in dispatch_event () at ../wayland-1.24.0/src/wayland-client.c:1707
#19 0x00007ffff732e6bb in dispatch_queue () at ../wayland-1.24.0/src/wayland-client.c:1853
#20 wl_display_dispatch_queue_pending () at ../wayland-1.24.0/src/wayland-client.c:2190
#21 0x00007ffff7332776 in wl_display_dispatch_queue_timeout () at ../wayland-1.24.0/src/wayland-client.c:2096
#22 0x00007ffff7332860 in wl_display_dispatch_queue () at ../wayland-1.24.0/src/wayland-client.c:2163
#23 0x00007ffff7d03561 in Fl_Wayland_Screen_Driver::open_display_platform () at /usr/src/debug/fltk/fltk-release-1.4.4/src/drivers/Wayland/Fl_Wayland_Screen_Driver.cxx:1426
#24 Fl_Wayland_Screen_Driver::open_display_platform () at /usr/src/debug/fltk/fltk-release-1.4.4/src/drivers/Wayland/Fl_Wayland_Screen_Driver.cxx:1406
#25 0x00007ffff7ca6da7 in Fl_Screen_Driver::open_display () at /usr/src/debug/fltk/fltk-release-1.4.4/src/Fl_Screen_Driver.cxx:605
#26 Fl_Screen_Driver::open_display () at /usr/src/debug/fltk/fltk-release-1.4.4/src/Fl_Screen_Driver.cxx:600
#27 0x00007ffff7d03d14 in Fl_Wayland_Screen_Driver::get_system_colors () at /usr/src/debug/fltk/fltk-release-1.4.4/src/drivers/Wayland/Fl_Wayland_Screen_Driver.cxx:1708
#28 0x00007ffff7cec929 in Fl_Window::show () at /usr/src/debug/fltk/fltk-release-1.4.4/src/Fl_arg.cxx:290
#29 0x000055555557b8aa in Fl_Double_Window::show () at /usr/include/FL/Fl_Double_Window.H:36
#30 main () at /home/kenoby/dev/alsa-tools/hdspmixer/src/hdspmixer.cxx:120
```
Related [Issue](https://github.com/alsa-project/alsa-tools/issues/43)
Request URL : https://github.com/alsa-project/alsa-tools/pull/42
Patch URL : https://github.com/alsa-project/alsa-tools/pull/42.patch
Repository URL: https://github.com/alsa-project/alsa-tools
next prev parent reply other threads:[~2025-12-01 20:35 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <alsa-project/alsa-tools/pr/42@alsa-project.org>
2025-11-30 14:14 ` hdspmixer: fix null pointer dereference in HDSPMixerWindow:handler_cb GitHub pull_request - opened
2025-12-01 15:29 ` GitHub pull_request - edited
2025-12-01 20:32 ` GitHub pull_request - edited
2025-12-01 20:32 ` GitHub pull_request - edited
2025-12-01 20:33 ` GitHub pull_request - edited
2025-12-01 20:33 ` GitHub pull_request - edited [this message]
2025-12-01 20:34 ` GitHub pull_request - edited
2025-12-01 20:35 ` GitHub pull_request - edited
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